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CHANGES.txt
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Changelog for python-aiml
version 0.9.3
* Replace time.clock() by time.time(), since time.clock() has been removed in
python 3.8 [Harmon758]
* slight modifications towards PEP-8 compliance
version 0.9.2
* Use raw strings for regex patterns [Harmon758]
version 0.9.1
* Fixed compatibility with Python 3.6 (removed usage of re.LOCALE) [Ryan Arredondo]
* Make some unit tests more robust against terminal encodings [Ryan Arredondo]
version 0.9.0
* Refactored to make it compatible for both Python2 (tested on 2.7) & Python3
(tested on 3.4)
* By default utf8-encoded strings are used in Py2 (for backwards compatibility),
and standard strings (i.e unicode) in Py3
- This can be changed via the `Kernel.setTextEncoding()` method.
* Tests moved from inside package to separate test files, and refactored to use
standard Python unit test infrastructure
* Additional argument _chdir_ to `Kernel.bootstrap()` method
* aimlvalidate & test scripts install now as package scripts aiml-validate and
aiml-bot. They have been refactored and contain additional arguments
* The "standard" AIML set has been moved as package data, and installs with it
* Added ALICE AIML v. 1.9 from aiml-en-us-foundation-alice at
https://code.google.com/archive/p/aiml-en-us-foundation-alice/downloads
* aiml-en-us-foundation-alice has GNU Lesser GPL license
(http://www.gnu.org/licenses/lgpl.html)
* a few AIML 1.9 files have been corrected. Two of them have been commented
out since they use the AIML 2.0 <learn> construct
------------------------------------------------------------------------------
Changelog for PyAIML
version 0.8.6
- Fixed WorbSub module to work with words that consist entirely of punctuation :-).
- Fixed PatternMgr module to replace non-alphanumerics with whitespace instead of simply
consuming them (thanks to Hugh Sasse for the patch).
- Added workaround to avoid a rare IOError exception when processing <system> tags
(thanks to Duncan Gough for the patch).
- PyAIML is now released under the FreeBSD license.
version 0.8.5
- Fixed a couple lingering Unicode bugs, one of which was breaking things
pretty thoroughly under Python 2.2.3.
- Improved whitespace handling, to the point where it should be compliant
with the AIML 1.0.1 standard. Basically, whitespace will be stripped
down to readable levels, unless the xml:space attribute is used to
indicate otherwise.
- Fixed bug in PatternMgr where the character '1' was mistaken identified
as punctuation to be stripped, instead of the intended '!'.
version 0.8.4:
- Fixed bug in AimlParser creation, if the aiml module was not in the same
directory as the script that imported it.
- Improved Unicode support (again) (thanks to Daniel Kottow for his help).
- 2nd pass at documentation. All functions now have useful, properly-formatted
docstrings.
version 0.8.3:
- Reworked the way AimlParser objects are created, to allow support for
XML namespaces in a future version.
- First pass at Unicode-proofing the whole system, so that multi-lingual
AIML files can be processed.
- Added support for "index" attribute in "star", "thatstar" and "topicstar"
elements (thanks to Robert D. Cotey for the patch!). Also added type-check
to ensure that the value of the "index" attribute is an integer.
version 0.8.2:
- Added protection against infinite AIML recursion.
- Removed the deprecated Kernel.getBotName and Kernel.setBotName functions.
- Added workaround for Unicode input crash. Feeding the Kernel Unicode
input no longer crashes the interpreter, but some internal input-formatting
operations must be skipped, which could cause some nonsensical replies
(like you're not already used to nonsensical replies, though...)
version 0.8.1:
- "system" elements now attempt to intelligently convert between UNIX-style
and Windows-style pathnames as appropriate. For cross-platform compatibility,
all AIML files should use UNIX-style paths inside their "system" elements.
- Fixed crashes under Windows9X when a "system" element is executed when
w9xpopen.exe is unavailable.
- Re-piped most errors and warnings to go to stderr instead of stdout.
- Fixed bug that would cause the the bot to stop responding to any input in a session
if the "that" or "topic" strings were 100% whitespace (but still not empty).
- Fixed bug that would cause multi-line "that" strings to become corrupted. For
example, "Hello there.\nNice to meet you" would become "HELLO THERENICE TO MEET
YOU" when queried for that-matching.
version 0.8:
- Removed support for non-standard "mode" attribute in "system" elements.
It just wasn't worth breaking the AIML standard for.
- Reworked persistent session support (I warned you!). The old method involving
Kernel.persistentSessions() has been removed. Instead, there is a new
Kernel.getSessionData() method which gives the bot author access to the session
data. You can store this data however you wish. Session data can be restored
later by repeated calls to Kernel.setPredicate().
- Improved AIML parser error handling; instead of aborting the entire file, a
parse error now only ignores the current category and forges ahead. To check for
parse errors, check the return value of AimlParser.getNumErrors() after parsing.
version 0.7:
- Further improved AIML parsing; missing or invalid XML attributes are now
detected at parse-time. There's also a first stab at support for Forward
Compatibility Mode: if the "version" attribute of an AIML tag is not 1.0.1,
the parser is much more forgiving of unknown or missing XML tags and attributes.
- Added "support" for the 'gossip' tag. The specific behavior of this tag is
totally undefined; currently, the PyAIML implementation treats it as a big
no-op. Its contents are ignored, and it returns the empty string (but at least
it isn't flagged as a syntax error!)
- Oops; I've implemented 'person' as 'person2' and vice versa this whole time!
Swapped them back; they should each behave correctly now.
- A bit of code cleanup, with an emphasis on using proper XML/AIML terminology
whenever possible.
- Fixed some exception-masking in the 'condition' element processor, which could
prevent AIML parse errors from being reported.
- Added full support for the "bot" tag (previously only the 'bot name="name"'
form was supported). Bot predicates are set using the Kernel.setBotPredicate()
function. Note that Kernel.getBotName() and Kernel.setBotName() have been
deprecated, and will disappear in a future release.
version 0.6.1:
- Fixed undefined variable exception that was thrown whenever there was no
match for the user's input.
- Fixed an infinite recursion bug caused by processing two or more nested
'srai' or 'sr' elements.
version 0.6
- Completely rewrote the LearnHandler class (which handles all AIML parsing)
to be much less forgiving of incorrect AIML. Currently, any AIML errors
outside of "template" elements should be caught and reported at load-time.
AIML errors inside templates are still not detected until run-time.
- Added support for atomic 'person' and 'person2' tags (they implicitly use
'star' as their contents if none are provided).
- Oops; Kernel.respond() was DEFINITELY not thread-safe. Now it is, provided
you're using Python's standard 'threading' module. If not, you'll have to
provide your own mutual-exclusion system to ensure that only one thread
is calling Kernel.respond() at a time.
- Recursive tags ('srai' and 'sr') no longer add their intermediate results
to the input and output history.
- EXPERIMENTAL FEATURE: persistent sessions. If enabled using
Kernel.persistentSessions(True), session data will be written to disk
after every response. This lets session data be preserved when the
Kernel is destroyed, at the expense of a small performance hit (all
that extra disk I/O). The semantics of this feature may change in future
releases!
- Added support for the "id" tag (it returns the session ID).
- Added support for the "topic", "topicstar" and "thatstar" tags.
- Commented up the test.py file.
- Added a summary to the end of the Kernel.py self-test (since there are now
too many tests to fit on screen).
- Added support for multi-sentence input. The user's input is split into
individual sentences, each of which is treated as a completely separate
piece of input. I'm *pretty* sure this is the Right Way(tm).
version 0.5
- The filename inside Learn tags can now contain wildcards. Besides
simplifying the loading of multiple files, this allows the possibility
of loading AIML files that may not exist without crashing the
interpreter.
- Attempting to set the value of a predicate in a nonexistent session
now automatically creates the session, instead of silently doing nothing.
- "set" tags now output the new value of the variable, as well as assigning
it.
version 0.4.1
- Unknown AIML tags are handled in a more forgiving fashion. If an
unknown tag is encountered, instead of ignoring its contents entirely,
the contents are processed and returned unaltered.
- Added support for "bot name='name'" tags, both in patterns and in
templates. This also fixes a nasty infinite loop crash when a user
says Hello to a bot.
version 0.4
- Added support for "star" and "sr" tags.
- Considered adding support for the "secure" tag, but decided against it.
see SUPPORTED_TAGS.txt for more information.
version 0.3
- Cleaned up AIML processing code to remove some unnecessary
special-cases in the interpretation algorithm.
- Added support for "input" and "that" tags.
version 0.2
- 50% speedup in Kernel.loadBrain() and Kernel.saveBrain().
- The optional 'learnFiles' and 'commands' arguments to
Kernel.bootstrap() can now be either strings or lists. This
allows multiple files/commands to be loaded during
initialization.
- Added support for "person" and "person2" tags.
- Added general word-substitution functionality. This opens up
the potential for localizing PyAIML into non-English languages.
See DefaultSubs.py for more info.
version 0.1:
- Initial release.